Aftermarket = a lot of money though. I'll have to buy a head unit, wiring, amp, speakers, etc, etc. I know you can get that stuff pretty cheap off ebay. My first car had a $3,000 stereo in it that was all off Ebay for a total of about $700. lol
A member over on MD forums suggested to swap in a Mach1000 system since it all plugs right in to what Ive got. I'll have to see if a) they're available anywhere (which i doubt), and b) what they're worth. I think I'd be happy with the 460 speakers/components, so maybe I should just look into a sub and amp to go with the stock speakers. Then I'd turn the bass real low to the stockers, and let the sub do that work.
I think my mom's '04 6 banger has the mach1000 in it and it sounds pretty nice. There's no crossover though, so the speakers distort waaaay before the subs do.